Thread-eye for shuttles



G. M. CHENEY AND L. C. HAHWOOU. THREAD EYE FOR SHUTTLES, APPLICATIONFILED AUG 31, 1915.

nven'Tors.

5/ Ge0rgeM.Cheney Leon Q.Harw0od byfi md Mk1; Aily's.

Patented Apr. 20, 1920.

GEORGE Ill. CHENEY AND LEQLT ASSIGNOBQ TO LITCHFIELD CHUSETTS, ACQBPGRATIGhT corneas. usn'rrs.

F SQUTI-IBRIDGE, MASSA- THREAD-EYE FDR- $I-IUTTLES.

i es'asse.

Application filed August 31, 1915.

To all whom it may concern:

Be it known that we, Gnonen M. Cimnnr, a citizen of the United States,and resident of Southbridge, county of Worcester, State ofMassachusetts, and LEON C. i-lenwoon, a citizen or the United States,and resident of Southbridge, county of lVorcester, State ofMassachusetts, have invented an improvement in Thread-Eyes for Shuttles,of which the "following description, in connection with the accompanyingdrawing, is a specification, like characters on the drawing representinglike parts.

This invention relates to improvements in thread eyes for hand threadingor automatic loom shuttles and one of the objects thereof is to providea thread eye which may easily be inserted in the eye hole, combined withmeans for retaining it in the eye and also providing a barrier acrossthe slot in the thread eye to prevent the filling from escaping from theeye once introduced therein= Another object of the invention is toprovide for hand threading shuttles thread eye of the character abovedescribed comprising a thread guiding member of vltreous material suchas porcelain glass or the like which will not be out by the running ofthe thread.

Another object of the invention is to provide means for inclosing thevitreous thread; guiding member in a protecting sheath whereby the saidmember vill be protected from injury during the operation of the shuttlein he loom.

(Ether objects of the invention will more fully appear from thefollowing description, the accompanying drawings. and will V be pointedout in the annexed claims.

The drawing illustrates several species of our invention, in whichFigure l is a plan view of the end of a shuttle equipped with one of ourimproved thread eyes,

2 is a side view or the same,

3 is a vertical sectional view on lines o shut h Specification ofLetters Patent.

Patented Apr. 20, 1920.

Serial No. 48,316.

form of thread eye formed of sheet metal and anchored in place by a pinengaging an extended end of the thread eye,

Fig. 7 is a detail perspective view of the thread eye illustrated inFigs. 1, 2, 3,

Fig. 8 is a perspective view of the thread eye shown in Fig. 4,

Fig. 9 is a perspective view of the thread eye shown in Fig. 5,

Fig. 10 is a perspective view out the thread eye shown in Fig. 6,

Fig. 11 is a perspective view of another form of thread eye involvingour invention. The thread eyes which are illustrated in the drawing areparticularly adapted to be applied to the eye of ashuttle having con1niunicating downwardly extending and substantially horizontal threadingslots leading to the e e at or beneath the horizontal plane of the axisthereof, the eye being so located in the shuttle that the slot thereinis at the bottom of the thread eye so that the thread when introducedthrough the threading slots will pass into the eye through the bottomslot. W hen the thread is thus introduced into the thread eye thelikelihood of the shuttle becoming untl eaded in its flight to and froin the loom is minimized, and this possibility is wholly prevented inthe present invention by the provision of a arrier preferably in theform of av staple crossing the outer end of the thread eye above theplane of the bottom thereof. This barrier preferably is made to engagethe end of the thread eye in such a manner as to in retaining the eye inplace in the shuttie, being spaced apart from one portion of the wallthereof suiiiciently to permit the 'ntroduction of the thread.

These essential features it will be noted are common to all of thespecies of thread eye illustrated in the accompanying drawing. I

In the preferred embodiments of the invention disclosed herein theshuttle body 1 may be of the usual type provided with a bobbin or copchamber 2 communicating through the throat 3 with a threading apertureor well L from which leads a down wardly extending threading slot orkerf 5 which connects with a substantially horizontal kerf 6 lyingpreferably in substantially the horizontal axial plane of the shut- 1 amanner as to engage the outer tle body. The horizontal kerf 6communicates with the usual eye hole 10 at or beneath the horizontalplane of its axis.

In hand threading and automatic shuttles the shuttle eye is us :llyprovided with a metallic bushing to prevent the thread from wearing intoand cutting the wall of the shuttle eye. Such metallic inembers'arehowever found to be ineffective on certain kinds of yarn particularlyupon silks as they are liable to be cut by the running thread. life havetherefore provided a thread eye of vitreous niateria such as percelain01' glass or the like, having a smooth thread engaging surface.

We are aware that vitreous eyes have been used in connection withshuttles heretofore made but such eyes have ordinarily been constructedof porcelain and like fragile material. which when inde in slotted formfor use in hand threading shuttles is readily crushed by the bending ofthe beak 8 of the shuttle, which is between the her-is and 6, when theshuttl enters the box at the end of the lay. We have discovered thatthis may be avoided by the use of a thread eye of specially temperedglass or by inclosing the tempered or other vitreous thread guidingmember of the thread eye within a protecting shell and by providing abarrier at the outer end of the thread eye which engages the end wall ofthe thread eye or of the metallic protecting shell and also of the endof the inclosed' vitreous member at the rear of the slot and forces theinner end of the threadeye firmly against shoulder formed in the body ofthe shuttle as will hereinafter be more fully described.

As illustrated in Figs. 1 to 3 inclusive the thread eye 10 is of asubstantially cylindrieal form slotted at its bottom and hr ing adownwardly extending tangential portion 11 seated in a slot 12 in thebody of the shuttle. T his thread eye may be constructed of any suitablematerial but preferably of tempered of the character above de scribed. l'he 'eeges of the thread eye are slightly convergent shown in that thestrai 'ht oortion 11 is of a er P J. i. length than tne forward carverportion 13 of the eye. When the thread eye is SSS-311% bled in theshuttle the inner end wall i-Jl of the thread eye is caused to abutagainst a shoulder 15 inthe body portion 1); the f, tie, the outer endwall 16 of the extended portion being located in plane substantiallytangential to the curved surface 1? of the thread groove in the side ofthe sl" t tle. The thread eye 10 is preferably secured in place by abarrier or staple 18 which is driven into the wood of the shuttle insuch end wall 16 of the thread eye and force the opposite wall 141- ofthe thread eye against the shoul V byline der 15. Inasmuch as the curvedouter wall of the thread eye is slightly inclined a space 19 will beprovided between it and the barrier 18 which will permit theintroduction of the thread into the thread eye.

Figs. i and 8 show a modified form of thread eye which comprises acentral cylindrical thread guiding member 20 preferably of vitreousmateriah such as tempered glass of the character above described,inclosed within a rigid protecting casing 21, preferably of metal suchas steel and secured therein by a lining or a coating 22 of cement orlike adhesive material. like the other is provided with a longitudinalbottom slot 24 the outer end of the thread eye being beveled or curvedas it approaches the slot to form a passage 25 adapted to permit theintroduction of the thread. The inner wall26 of the thread eye in thisconstruction is caused to. abut against a shoulderedportion 27 of theshuttle body and the thread eye is retained in its place in the shuttleby a staple 28 embedded in the wood of the shuttle and engaging theouter wall 29 of the threat eye at the rear of the longitudinal slot inthe same manner as illustrated in Figs. 1, 2, and 3. In thisconstruction the staple also overlies preferably engages the end wall ofthe vitreous lining member ant thereby serves to prevent the latter frombeing discharged from'the shuttle eye if for any reason it becomes loosewithin the'protecting casing.

in Figs. 5 and 9 a different specific form of thread eye is disclosed,This thread eye comprises a slotted cylindrical thread guiding member 80of vitreous material inclosed within a metallic protecting sheath 31. yIn this particular form the protecting sheath is constructed from acylindrical steel rod which is bored axially through a portion of itslength to receive the thread guiding member and is provided with atransverse slot 32 to communicate with the inner open end of the threadguiding member 30. In assembling this eye in the shuttle the eye hole 84is extended through the shuttle, the cylindrical thread eye abovedescribed is then positioned and introduced so that the longiin place bya pin 35 passing 5 igh the wood of the shuttle and the end So of themetallic member. A. staple 56 embedded in the wood of the shuttle at theouter end of the thread eye S01 ves to prevent the thread m being thrownout of the eye.

l nlligs. 6 and i0 still further modif cation of invention is lllUSZTUlZSLl. In this case the thread eye comprises a sheet metal lr 7having a-longitudiinal bottom slot 38 and a lateral slot 39 to receivethe thread and permit the same to be introduced This thread eye CIT.

into the chamber of the thread eye, the cylindrical portion 37 beingprovided with a cylindrical extension ll adapted to re ceive a securingpm.

As illustrated in Fig. 6 the aperture 42 which forms the eye hole isextended through the wall of the shuttle, the thread eye is introducedtherein and is retained in place by a pin 3 passing downwardly throughthe body of the shuttle into the wall of the shutthe eye. At the outerend the staple 44s is embedded in the wood of the shuttle and crossingthe slot 38 serves to prevent the escape of the thread from the shuttle.

It will be understood that in securing th thread eyes illustrated inFigs. 5, 6, 9, and 10 in the shuttle they are first posi t'oned properlywithin the shuttle and a drill forced from the top of the shuttlethrough the wood of the shuttle and the metal of the thread eye, thedrill is then removed and thepin inserted.

In order to assist in positioning the thread ye a recess or key-way 45(see Eigs. 6 and 10) may be provided at the end of the thread eyeextension. By the use oi the proper tool, such as a jig, to engage thiskey-way the thread eye may be retained in proper position while beinginserted in the eye hole.

Fig. 11 illustrates another embodiment of this invention which includesthe form of thread eye illustrated in Fi 10 with the d vnwardlyextending huge illustrated in Figs. 2 and 3. This form of thread. eyecomprises a cylindrical portion d6 which preferably incloses a vitreousthread guid- 47 the cylindrical portion ing member and the inclosedvitreous thread guiding member having a longitudinal bottom slot 48 anda transverse slot 52. The rear wall of the cylindrical portion 46 isextended substantially tangentially to form adownwardly projectingextension 49 adapted to engage a suitable slot in the wall of theshuttle at the bottom of the eye hole as illustrated in Fig. 2, theinner end of said.

flange abuttin a shoulder in the shuttle body and the outer end beingengaged by a staple as in Figs. 2 and 3 as heretofore described.

inner end 50 or the metallic thread eye may if desired be provided witha keyway 51 to aid in positioning the thread eye in the shuttle in themanner above described. However, the key way is not ordinarily necessaryin this form of thread eye, since the thread eye is properly positionedby the down ardly extending flange 49. The cylind .n portion is providedwith a lateral slot 52 through which thread may be led to the threadguiding portion of the eye. This form of thread eye may be used with orwithout the vitreous lining as will be readily apparent to those skilledin the art. In the forms of thread eye illustrated in Fig. 11 felt orwool may be readily introduced through the open extended end of thethread eyes to produce the desired amount of friction upon the runningthread.

It will be understood that the disclosure is merely illustrative of someof the embodiments of our invention but is not restrictive and that thesame may be embodied in other forms within the meaning and scope of thefollowing claims.

Having thus described our invention what we claim as new and desire tosecure by Letters Patent is:

1. A loom shuttle having an eye hole, a slot to provide a thread passagethereto, the end wall of said eye hole presenting a shoul der, a threadeye in said eye hole provided with a longitudinal bottom slot, and astaple engaging a portion of the end wall of the thread eye and forcingthe opposite end of said eye against said shoulder, said stapleoverlying the bottom of the slot, whereby the thread eye is secured inthe eye hole and the thread prevented from escaping from the eye whenonce introduced therein.

2. A loom shuttle apertured to form an eye hole and slotted to provide athread passage thereto, a thread eye located within said eye hole havinga hollow vitreous thread engaging member and an inclosing casingprovided with registering longitudinal bottom slots communicating withsaid threading slots, a staple engaging a portion of the outer wall ofthe thread eye and lining member at the rear of said slot to secure thesame in the eye hole and spaced apart from said wall upon the oppositeside of said slot whereby the thread may be intro duced readily throughthe guiding slot in the thread eye but will be prevented from escapingtherefrom.

3. A loom shuttle having an aperture forming an eye hole and slotted toprovide a passage theret a thread eye located in said eye holecomprising a metallic cylindrical bushing having a lining of vitreousmaterial secured therein, the metallic memher and vitreous lining memberbeing provided with registering longitudinal bottom slots connectingwith the threading slot in the shuttle, means for securing the threadeye in the eye hole, including a staple engaging a portion of the endwall of the eye upon one side of the slot and spaced apart from saidwell upon the opposite side of the said slot.

In testimony whereof, we have signed our names to this specification.

GEORGE M. CHENEY. LEON O. HARWOOD.

